71-211-177-143.ftth.glasoperator.nl IXFR zone transfer

Changes since SOA version

IXFR is a zone transfer request that returns changes since a specific SOA version. Enter the SOA version to request changes since then.

Not an apex domain The domain 71-211-177-143.ftth.glasoperator.nl is not the root of its zone.
Instead, try zone transfer on ftth.glasoperator.nl .